to hook up a motor fan is the fan suppose sto be blowing wind against the motor or sucking the wind away form the motor ?

It can be argued either way, but most people feel that its best if the air is blown towards the heatsink.

that way the heat can be drawn off more efficently and thus the electronics stay much cooler, have more efficency, and have a longer life

o thaks ALOT !!

i been putting my fan the other way